User guide

43
14
Troubleshooting
“NCK Code” is
displayed on my
handset
The handset is locked to a
network and a SIM from another
network has been placed in the
phone
Remove the SIM and insert the correct network SIM.
Sendo cannot supply your NCK code.
Warning: If you enter the wrong NCK code you could
block the phone.
“Blocked” is displayed
on my handset
The NCK code has been
entered incorrectly 10 times and
the handset has been security
disabled
Contact your service provider for advice. Note: The
number of incorrect entries depends on your service
provider.
A key on the keypad is
not working
Key lock on The keypad may be locked. Check the screen for the
symbol. Press γ and
*
in quick succession to
unlock the keypad.
Poor display Low temperature Move to a warmer place and let the phone warm up.
Can’t connect to
network
Weak signal You may be in an area of poor coverage. Move to an
area with a better signal.
Invalid SIM card Contact your service provider.
Network not allowed Try reselecting the network. Switch off and then back
on.
Can’t make/receive
calls
Weak signal Check that the service provider name is displayed on
the screen. If not, try to reconnect to the network or
move to an area with a better signal.
Phone is switched off Press δ for a few seconds.
Battery is low Phone can power down if the battery is very low.
Charge the battery.
Check the number Use the full area code and country code in the
number.
Call key not pressed After dialling the number you must press γ, Call.
Network is busy If you hear rapid beeps, then the network is busy.
Hang up and try again.
Call barring or fixed dialling is
activated
Check the fixed dialling settings. Otherwise check
the call barring settings with your service provider.
Not registered with service
provider
After purchasing your phone, you may need to call
your service provider to activate the line.
No credit left on your prepaid
card
Recharge your credit.
Problem Possible cause Possible corrective action